Preheat your oven to 375°F (190°C).
Cook the lasagna noodles in boiling water according to package directions until al dente, then drain and lay flat on parchment paper.
In a medium skillet over medium-high heat, cook the ground turkey until browned, breaking it into small crumbles.
Stir the sea salt, black pepper, garlic powder, and dried oregano into the turkey, then remove from heat to cool slightly.
In a mixing bowl, combine the ricotta cheese, egg whites, chopped fresh spinach, and the cooked turkey crumbles.
Spread the ricotta mixture evenly over each lasagna noodle, leaving a small gap at one end.
Carefully roll each noodle up tightly and place them seam-side down in a small baking dish.
Pour the marinara sauce over the rolls and sprinkle with the parmesan cheese.
Cover with foil and bake for 20 minutes, then remove the foil and bake for an additional 5 minutes until the sauce is bubbling.